Fix Member.roles having None members

Signed-off-by: Depreca1ed <[email protected]>

Author: Depreca1ed

discord/member.py

@@ -561,7 +561,9 @@ def roles(self) -> List[Role]:
             role = g.get_role(role_id)
             if role:
                 result.append(role)
-        result.append(g.default_role)
+        default_role = g.default_role
+        if default_role:
+            result.append(default_role)
         result.sort()
         return result